Abstract

Novel genotyping method for single nucleotide polymorphisms (SNPs), based on site-selective RNA scission, has been developed. A substrate RNA is activated at two sites by complementary acridine-modified DNA having two acridine residues, and is site-selectively cleaved by metal ion catalyst to produce short RNA fragment containing the SNP site. Genotype of the substrate is accurately and easily determined by mass analysis of the fragment.

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